Android Open Source - Tacere License Check Wrapper

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License

The source code is released under:
MIT License
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Java Source Code

/*
 * Copyright (c) 2014 Jonathan Nelson//from  w  w w .  j a va  2s . c o m
 * Released under the BSD license.  For details see the COPYING file.
 */

package org.ciasaboark.tacere.activity;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;

import org.acra.ACRA;
import org.acra.ErrorReporter;
import org.ciasaboark.tacere.R;
import org.ciasaboark.tacere.billing.Authenticator;
import org.ciasaboark.tacere.billing.KeySet;
import org.ciasaboark.tacere.billing.google.IabException;
import org.ciasaboark.tacere.billing.google.IabHelper;
import org.ciasaboark.tacere.billing.google.IabResult;
import org.ciasaboark.tacere.billing.google.Inventory;

public class LicenseCheckWrapper extends Activity {
    private static final String TAG = "LicenseCheckWrapper";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_license_check_wrapper);
        final Authenticator authenticator = new Authenticator(this);
        authenticator.deAuthenticate();
        final Context context = this;

        final IabHelper buyHelper = new IabHelper(this, KeySet.GOOGLE_LICENSE_KEY);
        if (buyHelper == null) {
            Log.e(TAG, "unable to IabHelper instance, play store services might not be installed.");
            ErrorReporter errorReporter = ACRA.getErrorReporter();
            if (errorReporter == null) {
                Log.e(TAG, "error getting ACRA error reporter instance, will not be able to submit bug report");
            } else {
                errorReporter.handleSilentException(new IabException(-1, "unable to get IabHelper instance"));
            }
        } else {
            buyHelper.startSetup(new IabHelper.OnIabSetupFinishedListener() {
                @Override
                public void onIabSetupFinished(IabResult result) {
                    if (!result.isSuccess()) {
                        // On error, say sorry and leave the app in demo mode
                        Log.e(TAG, "unable to contact licensing server: " + result.getMessage());
                        Toast.makeText(context, "Unable to contact licensing server, will remain in reduced mode", Toast.LENGTH_SHORT);
                        startMainActivity();
                        buyHelper.dispose();
                        finish();
                        return;
                    }

                    // Get a list of all products the user owns
                    buyHelper.queryInventoryAsync(new IabHelper.QueryInventoryFinishedListener() {
                        @Override
                        public void onQueryInventoryFinished(IabResult result, Inventory inv) {
                            if (result.isFailure()) {
                                // If we could not get a list of the owned SKUs, say sorry and keep the demo version
                                Log.e(TAG, "error getting list of owned SKUs: " + result.getMessage());
                                startMainActivity();
                                buyHelper.dispose();
                                finish();
                                return;
                            } else {
                                boolean isPremium = inv.hasPurchase(KeySet.SKU_UPGRADE_PRO);

                                // Set the shared preferences to premium=true if the user owns it
                                authenticator.setAuthenticateSuccess(isPremium);
                                buyHelper.dispose();

                                // Forward to the currect activity depending on premium / demo mode
                                startMainActivity();
                                finish();
                                return;
                            }
                        }
                    });
                }
            });
        }
    }

    private void startMainActivity() {
        Intent i = new Intent(this, MainActivity.class);
        startActivity(i);
    }
}
Java Source Code List
